• Star formation in the universe, ISM, metalicity
• Evolution of AGN and galaxies
• UV-FIR Metagalactic Radiation Field (MRF)produced by stars in Galaxies and in AGN
• Extragalactic background radiation (EBL)
• Neutrinoemission from AGN
• Neutrinobackground
• Neutrinodetection (e.g.LUNASKA)
• Extragalactic gamma-ray background (EGBR)
• High energy gamma ray emission (MeV-TeV) (e.g.MAGIC)
• (Ultra)luminous infrared galaxies (AGN or starburst?)
• Particle accelaration in AGN Jets
• Astroparticlephysics

--- Datafiles ---

• EBL/MRF

• Optical depth for gamma-photons

  
  

--- Figures ---

• Extragalactic Background Light

  
  (Kneiske et al. 2002, A& A 386, 1)
  (Kneiske et al. 2004, A& A 413, 807)
  

  Global Star Formation Rate

  
  

  Gamma-Ray Absorption

  
  (Kneiske et al. 2004, A& A 413, 807)